op-amp

Experiment in using an old hard-disk as a rotary input device (with an Arduino and a Raspberry Pi).

Electronic circuits in a virtual laboratory + Arduino

An extremely low now voltage regulator with very high accuracy

Current measurement in 1uA - 20mA range

Design and Simulation of the Internal Circuitry of the UA741

Various electronic systems including ADC/DAC, filters, and simulations using NI Multisim.

Make my own Electronic Load

Performing Mathematical Operations With Op-Amps In LTspice Article Resources

Programmable DC power supply based on Arduino UNO WiFi Rev2

Design, simulation(LTspice), and automated Python characterization of a Two-Stage Miller-Compensated CMOS Op-Amp in TSMC 0.18µm. Achieved 71 dB Gain, 52.1 MHz GBW, 63.3° Phase Margin, and 53.7 V/µs Slew Rate with deep-submicron short-channel tuning.

Our project creates a versatile function generator using op-amps to generate sine, square, and triangular waveforms. Additionally, it doubles as an electrocardiogram (ECG) signal amplifier for medical diagnostics. This project illustrates the versatility of op-amp circuits in signal generation and amplification.

Analog lead compensator for a second-order plant to improve transient performance (reduced overshoot, faster settling).

Other Small Semester 1 Projects

This MCC based MPLAB X IDE example shows how to use the Analog Signal Conditioning (OPAMP) peripheral to implement a constant-current driver using just one external resistor. The constant current amperage setting can be adjusted using firmware control.

Discrete-component uA741 operational amplifier replica with JLC EDA Pro, Altium, and manufacturing exports.

A load cell measures the weight using strain gauges. The difference between the length of the load cell at one side of the cell will help in determining the weight that is applied to it. This will change the output impedance. The output impedance is integrated into a Wheatstone bridge where the difference of the output impedance determines and c…

Two-stage inverting amplifier (buffer + summing/low-pass filter) and a three-NE555 timing chain generating a delayed pulse per clock edge — designed, simulated in TINA-TI, and verified on the bench.

An STM32 HAL example of a programmable-gain amplifier (PGA) using a digital potentiometer.

First-order RC low-pass with op-amp buffer (LTspice). Looking for contributors.

These MPLAB X MCC examples in Getting Started with Analog Signal Conditioning (OPAMP) (TB3286), show how the OPAMP can be used on the AVR DB family of microcontrollers. The OPAMP peripheral features up to three internal operational amplifiers.